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Patnted Mar. 28, I899.

T .1. NEACY. CHAIR FOB CONVEYEB CHAINS.

(Application filed Nov. 25, 1891.)

(No Model.)

IINTTED STATES PATENT FFICE.

THOMAS J. NEAOY, OF MILWAUKEE, I/VISCONSIN,ASSIGNOR TO THE FILER & STOWELL COMPANY, OF SAME PLACE.

CHAIR FOR CONVEYER-CHAINS.

SPECIFICATION forming part of Letters Patent No. 622,064, dated March 28, 1899. Application filed November 25, 1891. Serial No. 418,071. (No model.)

To ctZZ whom it may concern:

Be it known that LTHOMAS J. NEAOY, of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain newand usefullmprovements in Chairs for Conveyer- Chains; and I do hereby declare that the following is a full, clear, and exact description of the invention,which will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

The main object of my invention is to pro: vide for the renewal of those parts of the chairs or dogs employed in chain conveyers which are subjected to the greatest wear and most liable to be broken and to facilitate the attachment of the chairs to the conveyerchain.

It consists in the features hereinafter described and then sought to be specifically defined by the claims.

In the accompanying drawings like letters designate the same parts in the several figures.

Figure 1 is a perspective view of a portion of a conveyer to which my improvement is applied. Fig. 2 is a plan View, on a greatlyenlarged scale, of a chair or dog attached to the conveyer-chain and provided with detach able shoes in accordance with my invention. Fig. 3 is a front elevation, and Fig. 4 a side elevation, of the same.

A represents a trough of the ordinary construction employed in log-conveyers. It is formed with a central longitudinal slot or opening Ct to receive the conveyer-chain and on each side of said slot or opening with ways a a, usually made of plates or strips of iron upon which the ends of the conveyer chairs or dogs are supported and guided.-

B is the conveyer-chain, and C oneof the chairs or dogs, which are secured at suitable intervals to said chain in the manner hereinafter specified. lhese chairs are ordinarily made of cast-steel and formed on the upper side with upwardly-projecting spurs or dogs 0 c, which are adapted to engage with the ends of logs or with whatever the conveyer is intended to carry. Heretofore they have been provided on the under side and at each side of the chain with shoes formed integrally therewith and adapted to slide upon the ways a a, and thereby support and guide the chairs in their proper positions in the conveyertrough. The shoes being thus subjected to great wear and hard usage and being made an integral part of the chairs have necessitated the frequent renewal of the entire chairs, involving not only considerable expense, but loss of time and inconvenience in detaching the old chairs from the chain and replacing them with new ones. These objections are obviated by the detachable shoes D D, preferably formed in their upper faces with dovetailed recesses to fit over and engage with the projecting ends of the chairs 0, which are formed for the purpose with corresponding dovetailed or beveled bases 0, as clearly shown in Fig. 4. The chairs and shoes are so constructed that the shoes may be readily removed from or placed upon the chairs from the sides without disturbing the connection of the chairs with the conveyerchain. They may be secured in place upon the chairs in various ways. I have shown as means suitable for the purpose rivets d d,

at one side of the center of the chair and are made of sufficient length to embrace both sides of the link, while the other pair c are locatedon the opposite side of the center and are made shorter, so as to embrace the upper side of the link only. These projections hold the chair in its proper relation to the conveyer-chain. To secure the chair to the link, I employ a staple E, which is preferably square in cross-section and composed of two longitudinal sections. It is placed around the upper side of the link to which the chair is to be attached andinserted at the ends through u pwardly-flaring holes in the base of the chair, in which they are spread by wedges c e, driven between the component sections of the staple. The wedges e e are secured in place by upsetting the ends of the staplesections over them. This construction of the staple affords a convenient fastening for attaching the chairs to the chain without the necessity of forging or heating the staple and will be found of great convenience where a forge and suitable tools are not conveniently accessible whenever broken chairs are to be replaced.

I claim 1. A chair for a conveyer-chain composed of two oppositely-arranged shoes each formed with a recess in its upper face, a base connecting said shoes and fitting in the recesses formed therein and provided with an upwardly-projecting spur or dog, and means on the lower face of the base for attaching the chair to and detaching it from a link of the conveyor-chain without separating the chain, said base and the opposite shoes which it connects together being separable from each other, substantially as described.

2. The combination with a conveyer-chain of a chair and a staple composed of separate longitudinal sections fitted one within the other for the attachment of the chair to a link of said chain, substantially as and for the purposes set forth.

3. A chair for conveyer-chains provided on the inner or under side with projections adapted to engage a link of the conveyor-chain placed perpendicularly thereto, and a staple passing around one side of the link, and composed of separate longitudinal sections fitted one within the other and secured at the ends in holes in said chair by interposed wedges, substantially as and for the purposes set forth.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

THOMAS J. NEACY. \Vitnesses:

F. O. BUDD, CHAS. L. Goss. 

